some people had changes in behavior, thinking or mood, hostility, agitation, depressed mood and suicidal thoughts or actions while taking or after stopping chantix. if you notice any of these symptoms or behaviors, stop taking chantix and call your doctor right away. tell your doctor about any history of depression or other mental health problems, which could get worse while taking chantix. if you develop serious allergic or skin reactions, stop taking chantix and see your doctor right away as some of these can be life-threatening. don't take chantix if you've had a serious allergic or skin reaction to it. dosing may be different if you have kidney problems. until you know how chantix affects you, use caution when driving or operating machinery. common side effects include nausea, trouble sleeping and unusual dreams. ♪ my benjamin, he helped me with the countdown. "ben, how many days has it been?" "5 days, mom. 10 days, mom." i think after 30 days he got tired of counting. [ male announcer ] it's a new year. so, ask your doctor about chantix. and find out how you could save money on your prescription go to chantix.com to learn more and get terms and conditions.